vog-el



(No ModeL) 5 Sheets-Sheefi 1-.

W. VOGELL STEAM STREET GAR MOTOR. I

'No. 381,192. fPatentdA pr. 1"7, 1'888..

n. PETERS, Pholwlilhographer. Waihington, n. d

No'mioaeL) Y 5 sheets-sheet 2. -W. VOGEL. I I

STEAM STREET GAR MOTOR.

8N0. 381,192. Patented Apr; 17, 1888,

TQM-M i I n. PETERS. Pnmmhn n mr. Wnhinglnn, o. c.

(N0 M6881. 5 sneets sneet 8.

W. VOGEL. I STEAM STREET GAR MOTOR.

N8. 881.1912; Patented Apr. '17, 1888. T

N. PEIERS, Fholo-Iithagwher, Washingkm. D, C,

5 Sheets-8ht 4/ (N 0 Model.)

Wj VOGEL. STEAM STREET GAR MOTOR.

meal-.192, PatentdA r. 1'7.-'1 888..-

nbN U u. PETERS, l nen-Lithographer. Wasmngtnmji z;

5 Sheets-Sheet; 5.

PaQtentedApr. 17.

w. VOGEL I STEAM STREET GAR MOTOR.

(No Model.)

N.- PETERS. Pholoullmgnphar" Waahinghm. D. Q

- UNITED STATES WILLIAM- VOGEL, F CHICAGO, ILLINOIS, ASSIGNOR, BY DinnerAND MESNE l ASSIGNMENTS, TO THE VQGEL PETROLEUM HEATING COMPANY, or SAMEPLACE. I

STEAM STREET-OAR Mercia;

I SPECIFICATION forming part of Letters Patent No. 381,192, dated. April17, mes.-

Application filed October 18,1886. Serial 216,595. (No model.)

reference being had to the accompanyingdrawings, and to the letters ofreference marked thereon, which tion. -V v This invention relates to animproved steam motor for street-cars; and it consists in the mattershereinafter described, and pointed out 1 in the appended claims. f

Theinvention embraces an improved steamgenerating apparatus especiallyadapted for steam street-car motors, an improved steam driving-gear, andother novel features of construction in motors of the character setforth, as will hereinafter appear. 7

The novel steam-generating apparatus herein shown embracesmeans forapplying to a steam-generator certain novel features of construction inan oil-burning apparatus ofthe form a part of this specificakind shownand claimed "in a prior applica- .ti'on, Serial No. 210,046, filed inthe United 'States'Patent Office August 5, 1886.

The invention may be more fullyunder- 3o stood by reference to theaccompanying drawings. 1

In the said drawings, Figure 1 is-a side elevation ofa street-carprovided with a motor constructed in accordance with my invention. Figs.2 and2 illustratein central longitudinal vertical section the carshown'in Fig. 1. Figs. 3 and 3 illustrate in sectional plan' view, takenupon line :0 5'0 of Figs; 2 and 2, the devices shown in said Figs. 2 and2. Fig. 4 is 4c an enlarged sectional plan view of the oilburner bywhich the steam is generated, taken upon line at wof Fig. 5. Fig. 5- isan enlarged central'vertical section of the said burncrandadjacent-parts of the boiler. L 7 As shown in the said drawings, A isthe carbody, which is provided with the usual fioor frame-work, A,and-with platforms A A at its opposite ends.

B B are the supporting-wheels'of the car, 5owhich are rigidly securedtoaxles B B,

mounted in boxes B upon the car-bodyin the usual manner.

.0 is a boilerwithin which steam for actuat- 7 ing the car is generated;

D isan oil-burner for heating said b'oiler O; E is a tank or receptacleconstructed to contain feed-water, and provided with means whereby thelatter is heated by the steam from the motor.-

Theboiler O is located at the outerpart of exhaustthe platform A at oneend of the car, and the I tank Eissimilarly located upon the platform Aat the opposite endof the car. The driv I ing-gear of the motor islocated beneath. the I .65

car=body between the wheel-axles B B, and comprises twohorizontally-arranged steamcylinders, F F, which are provided withpiston rods ff, attached to sliding cross-heads F, held in guides f f.

I To each of said crossheads arerpivotally attached two connectingrods,F F, which are located upon opposite sides of the cylinders and engagecranks g g upon a crank-shaft, G, arranged transverselyf of the car.

H is a haft arranged parallel with the shaft: :7 5

G and provided with'a spur-wheel, H, which intermeshes with ajpinion, G,upon the shaft a e. The shaft H isjlocatedadjacentto one'of thewheel-axles B, and is adapted for connection-therewith by suitablegearing, as will be The cylinders F and the. other o'perativeparts abovereferred to are supported upona metalframe-work, I, which is sustainedsolely 1 by the saidaxles B independently of the car-- .body,said framebeing provided with suitable bearings, t 13, embracing the scar-axles,as

clearly shown in the drawings.

To describe more in detail the several parts of the motor: 1

The boiler C illustrated is'ofthe multi-tubular'type and consists ofacylindric shell,1O,

having a flat bottom, 0, a curved or, dome shaped -top,.c, and apluralityof tubes, m

connected with and opening through thesaid O, communicating at its topwith an exit-pipe 'orsmoke-staclz, O and between the boilerbottom andtop plates. The boiler constructed h in the manner described issurrounded at: its a top and sides by an exterior shell or casing,

shell and the said exterior shell,O ,is placed a bottomless shell,O,which extends about the top and sides of the boiler proper and dividesthe space inclosed between the exterior shell' and the boiler into twoparts or chambers. The exterior casing, C, is extended at its lower edgebelow the bottom plate, 0, of the boiler, and the side walls of theboiler-shell (Y are simibottom plate, a, and the flame and heatedproducts of combustion pass upwardly through the tubes 0, thendownwardly in the space between the boiler-shell and the shell 0, aroundthe bottom of said shell 0*, and then upwardly adjacent to the exteriorcasing, 0 and make their escape through the smoke-pipe. The boilerillustrated is provided with the usual safety-valve, O pressure-gage O,and watergage 0 (1 is a steam-pipe leading fromthe topof said boiler tothe engine-cylinders F F,

said steampipe, as more clearly shown -in Figs. 1 and 2, being extendedfrom the top of the boiler downwardly through the floor of thecar-platform, and then horizontally to the point opposite the saidcylinders, where it is carried across the car, and is connected withthesteam-chestsf f of the cylinders by means of suitable branch pipes. Abranch, 0", of the pipe 0 is connected with the latter at a pointadjacent to the top of the boiler, and extends downwardly through thecar-platform and beneath the bottom of the car, and is connected withthe exhaust-pipe from the cylinders, as

will hereinafter fully appear.

The oilburner D, herein shown as applied to heat the boiler G, isconstructed as follows:

. The burner consists, in its essential features,

of a porous or perforated bed or filling, J, made of fire-brick,asbestus, or other porous substance, but which may be made of sand orgrave] or of cast-iron vertically perforated, as shown, and a shallowreceptacle or trough, D", which is adapted to receive and hold the saidporous bed or filling. The said trough D is, supplied with oil or otherliquid hydrocarbon by means of a supply-pipe, K, the oil delivered tothe trough rising through the porous bed and being burned at the top ofthe said bed, in the manner set forth in the said prior applicationhereinbefore referred to.

In the particular construction of the parts herein illustrated theporous bed J is of annular form and the trough D is of similar shape. Asa convenient construction in the parts, a casing constructed to surroundand support the parts of the burner is formed by a cylindrie side wall,d, herein shown as forming a continuation of the shell of the boiler,and a'flat bottom plate, D. Upon this plate are formed or attached twoconcentric annular flanges or rings, D D, forming,with the plate, theannular trough D. The said plate D is preferably provided with a seriesof studs or prominences, d, upon which the porous bed rests, therebyforming a space or opening beneath the said bed. With this space theoilsupply pipe K, which in this case is made of circular form andlocated beneath the plate D is connected by means of short verticalbranches It. (More clearly shown in Fig. 5.) The supply-pipe K isconnected by a branch, K, with an oil-tank, K, which is preferablylocated beneath the seat at one end of the car, asindicated in dottedlines in Figs. 2 and 3, said supply pipe being preferably provided witharegulating-valve,K-such, forinstance, as is shown in a priorapplication, Serial No. 210,047, filed in the United States PatentOffice August 5, 1886. The ringD, whichforms the outer wall of thetrough D in the particular construction illustrated, extendsconsiderably above the top of the porous bed, and-is curved outwardlyand attached at its upper margin to the wall d of the casing. The ringD, forming the inner wall of the trough,-terminates slightly above thelevel oft-he top of the porous bed, and the upper edge of said wall, inconnection with the lower edge of a concave or flanged casting, Dsustained centrally vwithin the burner, forms a narrow annular passage,j, by which air to support combustion is admitted to the top of theporous bed. The casting D may be conveniently sustained by legs d,resting upon the plate D in the manner shown. Air isadmitted to thecentral space of the burner through openings d formed for the purpose inthe middle of the plate D, the air entering the said space passingtherefrom through the annular passagej to the space over the porous bed,where combustion takes place. For controlling the openings d d asuitable valve is provided, herein shown as consisting ofa rotatingplate, L.pivoted at the center of the plate B and provided withapertures d. For operating the valve L the latter is preferably attachedto a vertical shaft, L, mounted to rotate in a hub, d, upon the plateD", to the lower end ofwhich shaft is attacheda spur-wheel, U, which isengaged by another spur-wheel, L mounted upon a shaft, L, which extendsupwardly through the floor of the car-platform, and is provided with ahand-wheel, l, by which the shaft may be turned and the valve moved. Anadditional .means for controlling the burner is herein shown, consistingof a valve in the smoke-pipe 0", said valve being actuated bya lever, 0provided with a weight, 0, holding the valve normally open.

(1 is an annular flange formed or attached upon the upper surface of theplate D between the frame D and the air-inlet openings (P, for thepurpose of confining any'oil which may overflow from the trough D". Any.oil overflowingin the mannerdescribed remains upon the plate d untilvaporized by the heat of-the burner.

D6 is a door applied to the sidewall, a, of

the burner-casing, and d is an opening placed g in the ring D oppositethe said door and adjacent to the top of the'porous bed, saiddo'o'r andopeningd being for the purpose of allowing access to said bed for thepurp ose'of lighting the oil in starting the fire. 7

I prefer to construct the boiler and burner made as above described ofsuch size and shape and to so locate them upon the car.-

frame that the top of the boiler will not ex-' tend materially higherthan does the hand rail (indicated at A) commonly present uponcar-platforms."- This construction obviously enablesthe driver oroperator'to command an unobstructed view of the trackand roadway aheadwhen standing upon-'the-platform. It

is to be understood, however, that the proportions orsize of thegenerating apparatus may be variedin practice from theseshown -as,

for instance, the top ofthe generating apparatus; located in the mannershown may beconsiderablyhigherthan the hand-rail A without 1 obstructingthe View of aperson standing upon v tus.

ond-smaller tank or chamber,E, these tanks in the particularconstruction illustrated being the platform. T

The feed-watertank E, which is located at the end of the car oppositethat at which the boiler'O is placed,consists of a cylindric vessel ofgenerally thesame shape and size as the exterior-casing of Y thegenerating appara- Beneath the said; tank is located a secboiler, whichis introduced therein through the open pipe or tube E or otherwise, andwhich, while in-said tank, is free from steam or other pressure. a

E is a pipe which is connected at one "end with the top of the chamberE, and is pro- :vided at its opposite discharge endfwith an enlarged andperforated head, 6, located in'the lower part of the upper chamber, E.The

part of the pipe E between-its ends. is extended'to a point'above theusual water-level of the tank E, so as to prevent the passage of waterby gravity from the said tank to the chamber E. Said pipe E ispreferablyfmade of considerable length and arranged spirally within thetank E.

E is a pipe extending from the lower part.

of the'chamber E upwardly to a point above the water-line of the tankEand opening into the lower part of said tank.

M. is the exhaust-pipe from'theengine-cylv inders, said pipe beingconnected by branches m withthe cylinders, and being extended beneaththe car-floor to the chamber E", within the upper part of whichitdischarges, as'clearly shown inFig. 2. The-water within thetank'E'fills the greater part of the said tank and 1 covers thecoiledportion of the pipe Eflandl p a the exhaust-pipe is forced "by thepressure of: j ,the' exhaust steam through the said "tube E,

the steam enteringthe said'cham-ber E'through and passes from theperforated headisa'thereof .into the water WhlClllS within the saidtank.

In-itspassage through the icoiled part of the pipe Ethe pipe is heatedand aportion'of' the heat of the steam is thus transmittedto thewater-,.-iwhile at the same timeapartof the steam i-s coudensedwithinthepipeand returns to the chamber E. Theexit end of thesaid tube E ispreferably provided with the perforatedheade, in orderlthat the steammay be divided into fine jets as it enters thewater;

thereby' facilitating its 'condensation, "Theychamber E is employedmainly for 'thefpiu'n pose of equalizing thep re ssu're of the-steam,which obviously comes in puffsthroughthe exhaust-pipe, andthereby'prevents-the noise which would be caused by the passage of thesteam'directl y from the exhaust-pipe into'the water; Aconsiderable'part of the steaiii delivered into thechamber'Ewillobviously be conrff densed'therein,and the water of condensation.

from the 'coilE" retur'nsto the said chamber,

so that in'the operation of the device water will accumulate inconsiderablequantities in the bottom of said chamber E.

The 'pi e rr is for; the purpose of causingthe continualdis charge fromthe said chamber ofthe water which-thus accumulates therein, and forthis .purposethe openlowerend of the said pipe E is located at apointclose tojthe bottom of said chamber E, so that said lowerend of the pipewill always bebeneath the surface of the water containedinthe chamber.It is entirely obvious that when the parts are thus c'onstrncted thepressure of thefexh'aust'steam within the chamber E "uponthe top of the"water .therein'vcontaine'd will force the said water upwardly throughthe pipe E5, and

thereby cause its discharge into. the chamber Y E. The discharge end ofthe pipe E maybe located eitherin the upper or lower part of thetanklEyi'ts location at thelower part "of? the tank being preferred, inorderto'insure i against the free escape of steam fromith'ei' chamberE mthe open 'air inc'ase the water is low inthe tank and-thewater isforcedout of the chaniber Efaster than it accumulates; so as to allowsteam to follow'the' water through the saidpipe When the pipe Eisarranged rzs I asshownin the drawings, it will preferably be 7provided with a"check-valve, c, tofrestrain any-backward flow ofwater.therein, and to,

thereby prevent'the water in the tank being "siphoned into the-chamberEfwhen the, steam;

pressure is removed from the said chamber.-" i' Thesteam-generatingdevice, 'consi'stingflof the boiler and the burnerconnected therewith in the mannerdescribed and the water'tank E, may besustainrd upon the frames of the carplatformsin any suitable way. Onedesirable construction for this purpose is herein shown in Figs. 2 and3, in which the parts mentionedare each supported by a circular castingor.

ring, A, which is provided with an inwardlyextending flange, a, adaptedto engage the oil'- set or shoulder at the lower part of theboilercasing C in one case and tofit beneath the bottom of the chamber Ein the other case. The said ring A is desirably supported upon thecar-frame by means of arms a a, cast integral therewith and extendingrearwardly along the inner side of the platform-support a, to which theyare secured by bolts a At their sides and adjacent to the platform therings A A are desirably provided with horizontal flanges at, extendingover and resting upon the transverse frame-piece a of the carplatform.In the device shown the castings A are formed to provide sockets a. afor spring-buffers A and are constructed to support trackclearers A A.

N is a pipe by which water is carried from.

the tank E to a feed-pump, N, from which it is forced through afeed-pipe, N to the boiler. The said pipe N is provided with a verticalpart, n, within the chamber tank E, said part n terminating near thebottom of the said tank. The feed-pump N is made in the ordinary mannerand is actuated from an eccentriqh, upon the shaft H of thedriving-gear.

N is a rod connected with a valve controling an air-inlet opening to thefeed-pump, whereby air may be admitted to the said pump at the timeswhen the pumping of the water is not required in a familiar manner. Thesaid rod N extends from the feed-pump to a point beneath the platform A,where it is connected with ahand-lever, N, extending upwardly throughthe said platform in position convenient for its manipulation by thedriver.

The steam pipe or tube 0, for allowing the escape of steam from theboiler, is connected with the exhaust pipe N, as shown in Fig. 3, sothat steam allowed to escape from the boiler will pass through the saidexhaust-pipe into the tank E, where it is wholly or partially condensed,and thus disposed of without noise. Inasmuch as the tank E is in freecommunication with the open air, any uncondensed steam passing from thewater will make its exit quietly and without noise from the top of thepipe E either when the steam comes directly from the boiler or when itpasses from the exhaustports of the cylinder.

Inasmuch as the engine-cylinders F F and other operative parts of thedriving-gear are mounted upon the frame I, which is supported upon thewheel'axle in the manner before described. aud the ear-body is supportedupon said axles through the medium of springs in the manner commonheretofore, itis obviously necessary to provide .for a movement of theparts of the several steam, feed-water, and ex haust pipes, which areattached to the carbody with relation to the portions of said pipesimmediately connected with the driving-gear and supported upon the frameI. For this purpose I have herein shown each of the said several pipesas provided at points between the ends of the car and the saiddriving-gear .with flexible sections 0, formed by thick rubber tubes 0,connected at their ends with the.

pipes and re-enforced by exterior spiral wrappings, 0, of wire.

The slide valves of the steam cylinders shown are provided with a commonform of link-motion reversing-gear, P, the reversinggear belonging toboth cylinders being controlled by a single transverse rock-shaft, P,which is connected with the links by means of arms p and connecting-barsp. Said shaft is provided with a rigid arm, p, to which is connected anactuating-rod, P, which extends to a reversing-lever, P, mounted uponthe carplatform A. A single counterbalance-weight, p for bothreversing-gears is herein shown as applied to an arm, 1), fixed upon theshaft P.

To provide means for changing the speed at which the car is driven, andat the same time to increase or decrease the driving-power, I provide,for connecting the transverse driving-shaft H of the driving-gear withthe axle B of one of the car-wheels, two or more sets of gear-wheels,either of which may be thrown into action, as desired. For-this purpose,in the device shown, the wheel axle B is provided with aspur-wheel, Q,adapted to intermesh with aspur-wheel, H, upon the said shaft H. Thespur-wheelH is considerably smaller than the spur-wheel H,and on theother hand thewheel Q is smaller than the wheel Q, so that when thewheels Q and H are in position to intermesh with each other the car maybe driven at the highest speed and with the least power, and when thewheels Q and H are in engagement the car will be moved more slowly, butwith increased power. To provide a convenient means for shifting thegear-wheels to cause the engagement of one or the other pair thereof,the wheels Q and Q are desirably attached to a sleeve, Q, splined to thewheelaxle B, so that it may slide freely longitudinally thereon, and thesaid wheels Q and Q are placed at a less distance apart than the wheelsH and H, sothat when the wheel Q is engaged with the wheel H the wheel Hwill be free from the wheel H. When the parts are thus constructed, itis entirely obvious that the shifting of the sleeve Q a short distancein either direction will bring the wheel in either position forengagement with either one of the wheels upon the shaft H, as desired.For shifting the said wheels 'Q and Q',I have herein shown the sleeve Qas p'rovidedwith an annular groove, q,which is engaged by a ring, q, towhich is connected one arm of a bell-crank lever, Q supported upon avertical pivot, q",

' and connected with an operating-rod,Q,'vvliioh "surroundthe same byacasing', R, attached to;

a the supporting-frame I in the manner shown.-

This casing lzpreferably provide .witha re-; movable top',-R,by, meansof whicheaccess. may vbe had to the driving-gear for the purpose ofoiling the same or for-making repairs; 1

I The middle part of the car-floor is desirabl ,cut away over the casingR, and the opening: thus made is covered by .a*grating,.YRsn'stainedslightly above thetop of, the casing, so

- I as toallow a vertical. movement of the car-1.

body in the yielding of .the' springs, said top? being adaptedforconvenient removal toal or receptacle, E, communicating-at the topv85 low access to the interiorof saidc'asing. The supporting-frame I maybeconstructed;

in any convenient or 'preferred, manner; but,-.

. as herein shown, itconsists'of two longitudi II nal bars, I I, to theends of'which the beari ngs't' 't' are attached, said bars beingextended; 2 beneath theseveral-parts of. the, driving-gear' and upturnedat their ends for attachment to.

the said bearings i t, as clearly shown in Figs.

3 and3. The said bars I I are rigidly con nected by suitable cross-bars,1, upon which the cylinders F andfbearings for the severalshafts areattached orsustained.

One important feature of novelty in the driving-gear is embodied in the"construction wherein motion is communicated from the piston-rod of eachof the engine-cylinders to the driving-shaft G by means of a cross-head,F, and two connecting-rods, F F, extending from the cross-head towardand past thecylinder at. I I

or receptacle, E, communicatmg at its topwith x05 the open 'air, and achamber, E, connected I bothsides of the latter. By this construction adesired length of connecting-rod may be pro-- vided, while at the sametime theentire driv-' ing gear may beeasily placed within the space--between the caraxles.

By the employment in a motor for street cars of a steam-generator at oneend of the car and a tank for feed-water at theopposite end 'of the car,in the manner shown, these parts are so placed as togoccupy none of thespace in the car-body, so that the space for passen-' gers is notcurtailed, while at the same (time the weight of the boiler iscounterbalanced by the feed-water tank, and an objectionable preponderance of weight at either end of the car is thereby avoided. I j vI claimas myinvention wheels of a street-car anda car-bod y providedwith platforms at both ends; of a steam driving-gear located beneaththecar-body and betweentheaxles, a steam-generator located uponthe'out'er'end of the platform at'the op- 1. The combination, with thesupporting:

upon the outer end of the platform at one end" of the car, and a,feed-water heater: located 1 venting the noise of escapingsteam'infa'carmotor,consisting ofa tank or receptacle, E, a chamber, E,the saidtank E being constructed {to hold the feed-water andcommunicating at 7o its top-withrthe open-air, and a'pipeKEjyleadingfrom the top of the chamber Eand-open- :ing into the lower part of thesaid tank-E, sub

stantiallyasdescribed I 3. The combination, with a feed-watertank orreceptacle, E, openat its top to thefair, of l v a chamber, E,communicating. with the. exhaust-pipe of an engine, anda pipe,E*,leadingnfrom the top of the chamber E and dlscharging intothe'lower-partof the said tank', 8o

said pipe E being'bent into tortuous 'orispiral, form .withinthe tank,-substantially as described. f 1

4:. The combination, w'ithafeed-water tank with the open air, of a'chamber,-E,,"con1mui-C nicating' with the ez zhaust-passage of asteamcylinder, and a'pipe, E leading from the top I of the chamber E andopening into the lower part of thetank E, said pipe E being provided 0with a perforated head, e, at its exit end, substantially as described.

5.7 The combination, with a feed-water tank or receptacle, E, andchamber E, located beneath the tank E and connected with anexhaust=steam pipe, of a pipe, E, leading from l the top of the chamberE and discharging 1nto the tank, and a secondpipe, E leading from J thebottom of the chamber E and extending upwardly to a point above thewater-ma in I thetank and discharging into saidtank near the bottomthereof, said'pipe E -being provided. with a check-valve, substantial] yas described.-

6. The combinatiomwith a feed-water tank with the exhaust passageof asteam-cylinder,

of apipe, E, leadingfromthe top of the chamr -ber E and opening into thelower part- 0f the tank E, and a second pipe 'or tube, E ,"extend'- [10''ing from the bottom of the chamber E into the I said tank E,substantially as. described.-

7;, The combination, with thesteam-generatorand steam cylinders ofacar-motor, of y a feed-water'tank, E, communicating at its top 1 15' Iwith the open air, a chamber,- E, exhaustpipes connecting the cylinderswiththe said" chamber'EQa pipe or tube, E, connectingthe chamber Eiwiththe tank E, and a passage connecting the steamfgenerator with thesaidtzo' catedl-b'etween-and parallel with'theazgles at that'end of thecylinder opposite tothe ne at I H which the cross-head is located,driving-connections between the crank-shaft and one of the axles, andtwo connecting-rods uniting the cross-head and crank-shaft, saidconnectingrods being located at opposite sides of the cylinder.substantially as described.

9. The combination, with the supportingwheels of a street-car and acar-body yieldingly supported thereon, of a steam drivinggear locatedbeneath the car-body between the wheelaxles, a frame sustaining the saiddriv ing-gear, said frame being supported upon the axles independentlyof the car-body, and 2. casing surrounding and covering the driving-gearon all sides and supported solely by and upon the said frameindependently of the car-bod'y, substantially as described.

10. The combination, with the supportingwheels of a streetcar and acar-body yieldingly supported thereon, of a steam drivinggear locatedbeneath the car-body between the Wheel-axles. a frame sustaining thesaid driving-gear, said frame being supported upon the axlesindependently of the car-body, andacasingsurroundingand covering thedriving-gear on all sides and supported upon the said frameindependently of the car-body, said casing being provided witharen1ovabletop,and the carfloor being provided with an opening to allowaccess to said top, and a removable floor-section or grating coveringthe said opening in the car-floor, substantially as described.

In testimony that I claim the foregoing as my invention I aifix mysignature in presence of two witnesses.

WILLIAM VOGEL.

Witnesses:

O. CLARENCE PooLE, W. ROOVAART.

